High Performance Replacement Radiator for your OEM Pontiac bonneville/catalina Radiator. Engineered for superior quality and exact fit. All aluminum construction. Aluminum tank with aluminum core. Our radiator will fit right into you vehicle with no modification required on your part. 2 Row radiator. We carry standard cooling as well as heavy duty cooling on certain models. Vari-core construction available on certain models to maximize core thickness while maintaining the original dimension of your radiator. Makes for easy installation and maximum cooling. Limited Lifetime warranty.